Underground Service Alert of Southern California (USASOUTH) provides services to the public for information on underground facility location for all planned excavation.
Contact Us
Normal hours of operation are Monday through Friday from 6AM to 7PM*
We are closed.
* Excluding holidays (list located here)
To call in a new, renew or add/change any DigAlert® ticket, please call 811 or 800-422-4133.
For single and multiple addresses, work on a street, or work on a corner or intersection tickets, use DigAlert Direct
For all other inquiries, please visit our F.A.Q.s page, before calling 811 or 800-422-4133
Mailing Address:
Underground Service Alert of Southern California
P.O. Box 77070
Corona, Ca. 92877-0102
